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KMID : 0357520160390010027
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Journal of Radiological Science and Technology
2016 Volume.39 No. 1 p.27 ~ p.33
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Patient Radiation Dose Values During Interventional Cardiology Examinations in University Hospital, Korea
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Kim Jung-Su
Lee Jong-Hyuk
Jung Hae-Kyoung
Kim Jung-Min
Cho Byung-Ryul
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Abstract
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The use of cardiac angiography (CA) and the interventional procedures is rapidly increasing due to the increase in modern adult diseases. Cardiovascular intervention (CI) is an examination method where radiation is applied to the same area for a long period, and thus may cause skin injury. In this study, we investigate the diagnostic reference level (DRL) of the cardiovascular intervention (CI) carried out by medical institutions and use it as a tool to reduce patient exposure dose. In this study, the DRL was set by acquiring information about the cumulative fluoroscopy time, cumulative fluoroscopy dose-area product (DAP), radiography DAP, cumulative DAP, air kerma, number of video clips, and the total number of images from the cardiac angiography and interventional procedures performed on 147 patients. The DAPs corresponding to the DRL of cardiac angiography(CA) and that of the interventional procedures were shown to be 4.4Gym2$ 수식 이미지 and $298.6Gy{\cdot}cm2$ 수식 이미지, respectively; the corresponding DRLs of fluoroscopy time were shown to be 191.5s and 1935.3s, respectively. A DRL is not a strict upper bound for radiation exposure. However, the process of setting, enacting, and reviewing the DRLs for the dose by medical institutions will contribute to a reduction in the unnecessary exposure dose of patients.
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KEYWORD
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Cardiac Angiography (CA) , Patient dose , Dose-area product (DAP) , Diagnostic reference level (DRL) , Radiation exposure
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